Patent SG-11201907540Y-A (SG)
Title: Ultrasonic transducers and methods for producing an ultrasonic transducer
Inventor: YAO KUI
IPC: H04R17/00
Filed: 2018-02-21
Abstract: Electricalwire One-dimensional piezoelectric nanostructures Bottom Electrode - 1 00 102 Top Electrode 104 108 110 -- _ Silver epoxy 112 Backing 114 -- Housing-1p- Figure 1A (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 30 August 2018 (30.08.2018) WIP0 I PCT omit VIII °nolo moniloonmillowo (10) International Publication Number WO 2018/156079 Al (51) International Patent Classification: B82Y 30/00 (2011.01) H04R 17/00 (2006.01) BOOB 1/06 (2006.01) HOJL 41/18 (2006.01) (21) International Application Number: PCT/SG2018/050078 (22) International Filing Date: 21 February 2018 (21.02.2018) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 10201701352S 21 February 2017 (21.02.2017) SG (71) Applicant: AGENCY FOR SCIENCE, TECHNOLO- GY AND RESEARCH [SG/SG]; 1 Fusionopolis Way, #20-10, Connexis, Singapore 138632 (SG). (72) Inventors: YAO, Kui; c/o Institute of Materials Research & Engineering, 2 Fusionopolis Way, Innovis, #08-03, Sin- gapore 138634 (SG). LIEW, Weng Heng; c/o Institute of Materials Research & Engineering, 2 Fusionopolis Way, In- novis, #08-03, Singapore 138634 (SG). CHEN, Shuting; c/ o Institute of Materials Research & Engineering, 2 Fusio- nopolis Way, Innovis, #08-03, Singapore 138634 (SG). (74) Agent: SPRUSON & FERGUSON (ASIA) PTE LTD; P.O. Box 1531, Robinson Road Post Office, Singapore 903031 (SG). (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, (54) Title: ULTRASONIC TRANSDUCERS AND METHODS FOR PRODUCING AN ULTRASONIC TRANSDUCER 1-1 01 N CI0) 1-1 --.... (57) : According to various embodiments, there is provided an ultrasonic transducer including: a first electrode; a second electrode; and a plurality of piezoelectric nano structures, each piezoelectric nanostructure having a first end coupled to the first electrode, 1-1 © a second end coupled to the second electrode, a diameter of less than 500 nm, and a length of at least twice the diameter. C [Continued on next page] WO 2018/156079 Al MIDEDIMOMOIDEIREEMOMOMMINICHIMMIS EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Declarations under Rule 4.17: — of inventorship (Rule 4.17(iv)) Published: — with international search report (Art. 21(3))